Improvement in box-scrapers



A. TESTER.

Box-Scrapers.

Patented July 15, 1873 AM. PHOTO'LITHOGEAFHIC c0. MK (as/10km; PROCESS)UNITED A STATES PATENT OEEIcE.

ABRAHAM TESTER, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF AND JOHNCUNNINGHAM, OF SAME PLACE.

IMPROVEMENT lN BOX-SCRAPERS.

Specification forming part of Letters Patent No. 140,857, dated July 15,1873; application filed November 16, 1872.

To all whom it may concern:

Be it known that I, ABRAHAM TEsTER, of Brooklyn, in the county of Kingsand State of New York, have invented a new Improvement in Box-Scrapers,of which the following is a specification:

Figure 1 is a side View of my improved scraper. Fig. 2 is a face view ofthe same.

Similar letters of reference indicate corresponding parts.

This invention has for its object to construct a scraper which is usedon packing-boxes, ships, 850., with a movable blade, so that the samemay be sharpened when worn, and adjusted to a suitable angle for use inany desired position. The invention consists inpivoting the blade to thebifurcated handle of the instrument and in connecting it therewith bymeans of a pivoted brace, so that it can be swung into suitable positionand rigidly held therein.

In the accompanying drawings, the letter A represents the handle of theimproved scraper --that is to say, the metallic portion of suchhandlewhich is fitted with a wooden handpiece in ordinary or suitablemanner. The lower part of this handle A is bifurcated to hold thescraping-blade B between its arms, as is clearly shown in Fig. 2. Theblade is provided with pins 1) b at the ends, which pins enter socketsin the ends of the arms a, and

therefore serve to pivot the blade therein.

For application the arms a a are sprung apart to admit the blade betweenthem.

d is a rod or brace, pivoted at e to the handle and extending through anaperture of the blade B, and provided with two nuts, f f, which securethe blade on said rod d, at any suitable angle, thus fitting theinstrument to be used on a' ship or other place in any position.

Whenever any one inclination of the blade would not produce the desiredeffect, the blade can be changed and set at any other suitable angleuntil the desired effect be reached.

When the cutting-edge of the blade has become blunt the outer nut f isturned to release it from the rod or brace d, so that it may be swungclear of the brace entirely into the position shown by dotted lines atFig. 1. In this position the blade can be easily sharpened on a stone orotherwise.

It is the chief defect of the scrapers now in use that the blades arerigidly attached and cannot be sharpened at all when once worn. Thisdefect is entirely overcome by my invention, and the scraper, therefore,made much more valuable and durable, as the blade can be replaced whenworn out.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The combination of the rod 4 and nntsff with thepivoted blade B of the scraper, as and for the purpose specified.

ABRAHAM TESTER.

Witnesses:

CHAUNGEY M. FELT, JAMES J oHNs'roN.

